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Exhibit D CMLRB 112 Permit Application <br />Agile Slone Systems. Inc. <br />party contractor, to define, inventory and document all structures, their current condition <br />and methods of construction. The results of these investigations are being kept by Agile <br />and Vibra-Tech Engineers for future reference should there be any type of possible or <br />alleged blasting related structure damage within 5,000' of the project. <br />2) Apre-production blast test was performed by Vibra-Tech Engineers to establish <br />the likely impact from production blasts and to identify likely pounds of explosives/8 <br />millisecond delay using the scaled distance formula over various distances to 5,000'. For <br />example, using the Colorado Department of Labor, "Blaster's Guide for the Safe Use of <br />Explosives", the scaled distance formula results in a total explosive charge of 3,176 <br />lb/8ms delay period with maximum peak velocity under 1 inch/second to the closest <br />resident, Wootton's, at 3,110'. (Azurite, 12/97) <br />3) The maximum charge allowed per 8ms delay as prescribed by Vibra-Tech <br />Engineers in their study of the Project Site was 2,275 Ib/8 ms delay period but this was to <br />meet a much more conservative 0.20 MAPV event. The operator will use data from this <br />pre-production vibration survey to design and conduct initial blasting efforts. <br />4) A modern non-electric delay systems will be employed at the site for sequential <br />delay control. Blast hole stemming will follow current industry standazds such as 1.5' <br />times the bore hole diameter in inches or 0.7 times distance from the working face to the <br />first row of holes. Crushed and sized aggregate or drill cuttings will be used as the <br />• stemming material [o control fly-rock. Drill holes will be between 3.5" and 6.5" in <br />diameter and vary in depth from 20' to 55' depending upon whether the blasts aze for <br />development or production. All blasts will be in accordance with MSHA standards <br />designated on site. Burden and spacing will vary with drill hole diameters, hole depths <br />and the status of the face development. Overall powder factors between 0.75 pounds/ton <br />and 1.5 pounds/ton aze anticipated. Site security will be controlled to insure that no <br />unauthorized people or vehicles are within 1,000' of the blast zone at the time of any <br />blast. This will not be difficult since the project and blast azea are "land locked" 1,000' <br />away from the closest place anyone could trespass. Any trespass would require crossing <br />the Arkansas River which is the natural border to the project azea. Plus, north of the <br />Arkansas River is the railroad right of way which is fenced on both sides. Likewise, this <br />project site layout and natural river barrier will act to minimize any unanticipated fly <br />rock. The applicant will also not blast if a tourist or freight train is on the tracks within <br />1,000' of the blasting area. <br />5) The mine operator will monitor each development and production blast during the <br />granite quarry development. Blasts will continue to be monitored until it is apparent that <br />no excessive ground vibrations or air over blasts aze being generated by blasting at the <br />site. Monitoring will be conducted with seismic equipment and the results kept at <br />company offices. <br />2.4 Sandstone Quarry <br />• The site appears to have been previously mined in a small area for sandstone. No records <br />20 <br />